EARTHQUAKES · FRIO AREA · TX2019FMKH
Magnitude 2.1 15 km ESE of Dilley, Texas
Tuesday, March 19, 2019, 5:31:02 PM Central · 2019-03-19 22:31:02 UTC
A magnitude 2.1 earthquake 15 km ESE of Dilley, Texas on March 19, 2019 at 5:31 PM Central, 1.2 km deep, in the Frio County area.
It is one of 19 M2+ events located within 10 km of this spot, 1 of them in the thirty days before it; the largest nearby was M2.9.
4 active injection or disposal wells sit within 10 km, the nearest 1.1 km away and operated by FW Eagle Ford I, LLC; together they hold 67,000 barrels a day of permitted capacity.
- M2.1
- ML, reviewed
- 1.2
- km deep · 3,975 ft
- 1
- M2+ within 10 km, prior 30 days
- 19
- M2+ within 10 km, all time
- 4
- active injection wells within 10 km
- 325
- permitted wells within 10 km
Location
- Epicenter
- 28.6120, -99.0200
- County area
- Frio County
- On a map
- Google Maps ↗
- Catalog
- USGS event page ↗ · TexNet catalog ↗
Around it in time and space
M2+ events within 10 km, nearest in time first.
| When | Mag | Distance | Depth |
|---|---|---|---|
| Mar 13, 2019, 1:56 PM | 2.0 | 7.4 km | 2.0 km |
| Apr 11, 2019, 6:58 PM | 2.1 | 3.8 km | 7.2 km |
| Apr 12, 2019, 7:24 AM | 2.0 | 8.7 km | 8.3 km |
| Feb 15, 2019, 9:47 PM | 2.1 | 6.9 km | 8.0 km |
| Feb 5, 2019, 4:12 PM | 2.3 | 6.6 km | 2.4 km |
| May 14, 2019, 8:25 AM | 2.4 | 7.9 km | 4.8 km |
| Dec 30, 2023, 10:32 PM | 2.0 | 9 km | 1.2 km |
| Oct 31, 2024, 6:07 PM | 2.5 | 9.5 km | 6.0 km |
| Nov 21, 2024, 9:38 AM | 2.9 | 9.4 km | 4.8 km |
| Dec 13, 2024, 11:45 PM | 2.6 | 7.8 km | 3.2 km |
| Apr 19, 2025, 12:57 AM | 2.0 | 9 km | 6.1 km |
| Jun 9, 2025, 9:58 AM | 2.0 | 5.4 km | 3.5 km |
Largest nearby on record: M2.9 on Jul 14, 2026.
Injection wells within 10 km
RRC UIC MASTER · ACTIVE PERMITS
Proximity is not attribution. The wells are listed because the question is always asked; whether any of them is connected to this event is for the RRC's seismic response review, not this page.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Lonestar Operating SWD #1 | FW Eagle Ford I, LLC | 000114616 | 1.1 km | 4,000 | 8,341–8,949 |
| Wilson Ranch #11 | Sydri Operating, LLC | 000108792 | 4.5 km | 25,000 | 8,218–8,294 |
| Shiner Ranch #7 | Trinity Operating (Usg), LLC | 000078949 | 6.7 km | 3,000 | 5,530–5,800 |
| Meyers SWD #2 | C&e Production, LLC | 000110739 | 9.4 km | 35,000 | 9,175–11,396 |
Disposal in Frio County → · How disposal permits and volumes work →
About this data
Event tx2019fmkh from the USGS earthquake catalog, located by TexNet (UT Bureau of Economic Geology) and refreshed daily. Nearby wells from the RRC UIC well master and permit coordinates; daily volumes from the TexNet injection reporting tool.
Developers: this page as JSON is GET /v1/data/earthquakes/tx/events/tx2019fmkh, documented in the API reference.